CN101124647B

CN101124647B - Fusible switching disconnect modules and devices

Info

Publication number: CN101124647B
Application number: CN2005800387475A
Authority: CN
Inventors: M·R·达尔; R·S·道格拉斯; M·T·道维尔
Original assignee: Cooper Technologies Co
Current assignee: Eaton Intelligent Power Ltd
Priority date: 2004-09-13
Filing date: 2005-09-09
Publication date: 2012-04-25
Anticipated expiration: 2025-09-09
Also published as: US7495540B2; US9543083B2; TW200629325A; JP2008512847A; ES2312020T3; DE602005008462D1; CA2580052C; EP1803136B1; US20060055498A1; CN101124647A; AU2005285103B2; MX2007002775A; EP1803136A1; BRPI0515252B1; TWI376715B; WO2006031696A1; JP4648395B2; BRPI0515252A; AU2005285103A1; CA2580052A1

Abstract

Fuse state indicators for use with disconnect devices having a fuse are provided. Fuse state indicators include a housing having circuitry, a detecting means for detecting an open circuit condition, conductors adapted for electrical connection to a disconnect device so as to complete a circuit connecting the detecting means with a fuse of the disconnect device, and a signal transmitting means. The detecting means is configured to transmit a signal to the signal transmitting means for determining an operational state of the fuse. The signal transmitting means, in turn, is configured to transmit a signal to a remote device the state of the fuse.

Description

Fusible switch breaks off module and equipment

Cross reference to related application

This applies for that requiring to disclose thing is the priority of the U.S. Provisional Application sequence number 60/609,431 of Fusible Switching Disconnect Modules and Devices in this proposition in 13 days September in 2004 that adds as a reference in full and exercise question.

Technical field

Relate generally to fuse of the present invention, and relate more specifically to be equipped with the cut-off switch of fuse.

Fuse is widely used as overcurrent protection equipment to prevent the infringement high to the cost of circuit.Fuse terminal is usually at power supply and electric component or be arranged on to form between the combination of the parts in the circuit and be electrically connected.One or more fusible links or element or fuse element assembly are connected between the fuse terminal; Make when the electric current through fuse during fusible element melts and open one or more circuit through fuse to prevent electrical component damage above predetermined restriction.

In some applications, fuse not only is used to provide being electrically connected of fuse is housed, and is used for purpose for accomplishing or cut off one or more connections that are electrically connected and disconnection or switch.Thereby circuit is accomplished or cut off to the part of the conduction through fuse, thus the relevant circuit of excitation or de-energisation.Usually, fuse is contained in the fuse holder of the terminal with electric circuit that is attached to hope.When part with the conduction of fuse; Such as fuse cutter, terminal or ferrule, when joining the fuse holder terminal to, accomplish circuit through fuse; And when the part of the conduction that breaks away from fuse from the fuse holder terminal, cut off circuit through fuse.Therefore, through fuse being inserted the fuse holder terminal and removing fuse, realize being equipped with the cut-off switch of fuse from the fuse holder terminal.

Description of drawings

Fig. 1 is the perspective view of exemplary fusible switch off device.

Fig. 2 is the side elevation view in the part of the fusible switch off device shown in Figure 1 of off-position.

Fig. 3 is the side elevation view in the part of the fusible switch off device shown in Figure 1 of open position.

Fig. 4 is the side elevation view of second embodiment of fusible switch off device.

Fig. 5 is the perspective view of the 3rd embodiment of fusible switch off device.

Fig. 6 is the perspective view of the 4th embodiment of fusible switch off device.

Fig. 7 is the side elevation view of fusible switch off device shown in Figure 7.

Fig. 8 is the perspective view of the 5th embodiment of fusible switch off device.

Fig. 9 is the perspective view of the part of fusible switch off device shown in Figure 8.

Figure 10 is the perspective view of the 6th embodiment of fusible switch off device.

Figure 11 is the perspective view of the 7th embodiment of fusible switch off device.

Embodiment

In use there are many problems in the known decoupler that fuse is housed.For example, any trial that when fuse is energized and load is arranged, removes fuse can cause dangerous situation, because dangerous arc discharge can occur between fuse and the fuse holder terminal.Some for example are designed to hold UL (Underwriter's Laboratories Incorporated) type of CC fuse in industrial control equipment, generally using and the fuse holder of IEC (International Power tissue) 10X38 fuse comprises the auxiliary contact of for good and all installing and relevant rotating cam and switch, are connected when the fuse clip of fuse in protecting housing pulled out, to provide through breaking off in advance with the voltage and current of delay connection of fuse.Can for example come to pull out one or more fuses from fuse clip through removing drawer from the protection housing.Break off in advance with postponing to connect to be connected and be widely used in for example motor control application.Can increase the fail safe of equipment such when installing and removing fuse though break off in advance, the assembly of such characteristic increase cost, complicated fuse holder and undesirable for the switch purpose to the user with postponing to connect to be connected.

Structurally, break off in advance with postpone to connect is connected possibly be complicacy and may not bear the repeated use that is used for the switch purpose.In addition, when opening and closing drawer breaking off or again during connecting circuit, drawer possibly is retained in nocuously and partially opened or position that part is closed.In every kind of situation, the fuse in the drawer possibly fully not join fuse terminal to, and infringement is electrically connected and makes fuse holder possibly cause the opening and closing unintentionally of circuit thus.Particularly in the environment that is vibrated, fuse maybe be by loose from the clip shake.In addition, possibly interfere fuse holder working space on every side from the outstanding drawer that partially opens of fuse holder.The workman possibly clashed into the drawer of opening unintentionally, and closing drawers and exciting circuit unintentionally again.

In addition; In some system such as industrial control equipment; The standardization that become of the size and dimension of electrical equipment; And different with standard criterion because the known cut-off switch that fuse is housed tends to size and dimension, they are not compatible mutually with the distribution panelboard that is used for such equipment inevitably.Owing to above at least reason, the needs of some terminal applies are not also satisfied in the use that the cut-off switch of fuse is housed fully.

Fig. 1 is the perspective view that has overcome the exemplary fusible switch off device 100 of aforementioned difficulties.Fusible switch off device 100 can switch on and off with convenient and safe mode under the situation of the working space around the interference apparatus not 100 easily.Off device 100 can be with cost-effective mode make-and-break contact and can using with the standardized equipment in the Industry Control Application for example reliably.In addition, for versatility in the art, off device 100 can provide different installation and be connected selection.To describe the versatility of various embodiment below, and expection off device 100 can be favourable in multiple circuit and application with the proof off device.Therefore, the embodiment of following stated only provides to being used for illustrative purpose, and the present invention does not attempt to be limited to accordance with any particular embodiment or any certain applications.

In illustrative embodiment shown in Figure 1, the equipment of two utmost points that off device 100 can form for the disconnection module 102 of separating by two.Each module 102 can comprise insulation housing 104, be loaded into fuse 106 in the housing 104, fuse be attached to fuse cover or the cap 108 and the switch actuator 110 of housing 104.Module 102 is the module of one pole, and module 102 can connect or be connected to the off device 100 to form two utmost points together.Yet expection can form multipole equipment rather than with the modular mode of exemplary embodiment shown in Figure 1 in single housing.

Housing 104 can by such as the insulation of plastics or non electrically conductive material make according to known method and technology, include but not limited to casting process.In exemplary embodiment, housing 104 forms complementary with the DIN that is applicable to standardized electrical equipment and IEC standard and the size and dimension of compatible common rectangle mutually.Particularly, for example, each housing 104 has lower limb 112, opposed side edge 114, at side panel 116 that extends between the lateral edges 114 and the upper surface 118 that between lateral edges 114 and side panel 116, extends.Lower limb 112 has length L and lateral edges 114 has thickness T, and such as being 17.5 millimeters in one embodiment, and length L and thickness T define the zone or the area of coverage on the lower limb 112 of housing 104.Area of coverage permission lower limb 112 is inserted into has the complementary shape and the standardized opening of yardstick.In addition, the lateral edges 114 of housing 104 has the height H according to known standard, and lateral edges 114 comprises the groove 120 that is used to make housing 104 ventilations that extends through it.The upper surface 118 of housing 104 can confirm that profile is the recessed end sections 124 that comprises protruding core 122 and the lateral edges 114 that extends to housing 104.

The fuse 106 of each module 102 can vertically be loaded in the housing 104 through the opening in the upper surface 118 of housing 104, and fuse 106 can partly extend through the core 122 of the convexity of upper surface 118.The part of exposing of the fuse 106 that fuse cover 108 extend throughs extend from housing 104, and cover 108 fuse 106 is fixed to the housing 104 in each module 102.In exemplary embodiment; Lid 108 can be by the non electrically conductive material manufacturing such as plastics, and can form the finger piece 128 of the elongation that has usually the end section 126 smooth or plane and between the end of the upper surface 118 of the core 122 of the convexity of housing 104 and fuse 106, extend.The end that between contiguous finger piece 128, provides opening to think fuse 106 ventilates.

In exemplary embodiment, lid 108 also comprises the edge section 130 that combine finger piece 128 relative with covering 108 end section 126, and edge section 130 will cover 108 and be fixed to housing 104.In exemplary embodiment, the groove cooperation in edge section 130 and the housing 104 makes that covering 108 can rotate predetermined amount between latched position and off-position, such as 25 degree.Promptly; In case fuse 106 is inserted housing 104, can above the end of fuse 106, fuse cover 108 be installed in the groove of housing 104, and can latched position be spent in lid 108 rotations 25; In this latched position, lid 108 will obstruct from housing 104 and remove fuse 106.Groove also can have inclined-plane or inclination, makes when mounting cover 108, covers 108 slight downward power is applied on the fuse 106.In order to remove fuse 106, can lid 108 be rotated to open position from latched position, at this open position, can remove from housing 104 and cover 108 and fuse 106.

Switch actuator 110 can be positioned in the aperture 132 of convex upper surface 122 of housing 104, and switch actuator 110 can partly extend through the convex upper surface 122 of housing 104.Rotatably be installed to housing 104 on axle or the wheel shaft 134 that switch actuator 100 can be in housing 104, and switch actuator 110 can comprise bar, the handle or excellent 136 that radially extends from actuator 110.Through 132 first edge 138 moves to second edge 140 from the aperture with bar 136, axle 134 rotates to be opened or the position of the switch, and as the following fuse 106 that electrically breaks off in each module 102 with explaining.When with bar 136 when second edge 140 moves to first edge 138, off-position shown in Figure 1 is got back in axle 134 rotations, and electrically connects fuse 106.

Line side terminal element 142 can be extended to set up circuit and to load to being connected of circuit from the lower limb 112 of the housing 104 in each module 102.As shown in Figure 1, line side terminal element 142 can be used other line side terminal element for to be configured to or to be fit to be connected to the bus clip of circuit inlet highway yet be expected among the alternative embodiment.Panel is installed clip 144 and also off device 100 is installed on the panel with promotion from lower limb 112 extensions of housing 104.

Fig. 2 is one of them the side elevation view of disconnection module shown in Figure 1 102 that removes side panel 116.Can see that fuse 106 is positioned at the cabin 150 of housing 104 inside.In exemplary embodiment; Fuse 106 can be columniform tube fuse; The columniform main body 152 that comprises insulation; Be attached to main body 152 each end conduction ferrule or edge cap 154 and in main body 152, extend and be connected electrically to the fuse element or the fuse element assembly of edge cap 154.In exemplary embodiment, fuse 106 can be the UL class CC fuse that in Industry Control Application, generally uses, fuse or the IEC10X38 fuse that UL replenishes.A tube fuse that is applicable to these and other type in the module 102 can be from St.Louis, and the Cooper/Bussmann of Missouri buys.Should be appreciated that, also can in module 102, use the fuse of other type as required.

The fuse terminal 156 of the conduction of bottom can be positioned in the base section in fuse cabin 150 and in one embodiment can be for U-shaped.One of them puts the edge cap 154 of fuse 106 on the upper leg 158 that leans against lower terminal 156, and other edge cap 154 of fuse 106 is attached to the upper terminal 160 that is positioned at the contiguous fuse cabin 150 in the housing 104.Upper terminal 160 is connected to load side terminal 162 again, is connected to disconnection module 102 to be accepted load-side by known mode.Load side terminal 162 is known saddle screw terminal in one embodiment, yet should be appreciated that, the load-side that can use the terminal of other type to be used for module 102 connects.In addition, in embodiment further, lower fuse terminal 156 can comprise that fuse repels characteristic, and it prevents incorrect fuse type is installed in the module 102.

Switch actuator 110 can be positioned in the actuator compartment 164 in the housing 104 and can comprise axle 134, the main body 166 of the rounding that radially extends from axle 134 usually, the bar 136 that extends from main body 166 and the actuator link 168 that is attached to actuator body 166.Actuator link 168 can be connected to spring-loaded contact assembly 170, but contact assembly 170 comprises the

contact

172 and 174 of the first and second movable or switches that are attached to slider bar 176.In off-position shown in Figure 2, but the contact 172 of switch and 174 mechanically and is electrically joined to the

static contact

178 and 180 that is installed in the housing 104.Can one of static contact 178 be installed to the end of terminal component 142, and can with static contact another 180 be installed to lower fuse terminal 156 the end.When but the

contact

172 and 174 of switch joins

static contact

178 and 180 to, accomplish through fuse 106 from line terminal 142 and the circuit path of lower fuse terminal 156 to upper fuse terminal 160 and face terminals 162.

Though in exemplary embodiment, static contact 178 is installed to the terminal 142 with bus clip, can replaces the bus clip in the cabin 182 of housing 104, another terminal component to be provided, such as known box lug plate or anchor clamps terminal.Thereby, replacing the circuit inlet highway, module 102 can connect use with the hardwired to line-side circuitry.Thereby the different installation that module 102 can easily change in this area is selected.

When the direction in arrow A centers on axle 134 rotary switch actuators 110, the slider bar 176 that can move upward point-blank in the direction of arrow B, but so that the contact of

switch

172 and 174 breaks away from from static contact 178 and 180.Break off lower fuse terminal 156 from line side terminal element subsequently, fuse 106 keeps being connected electrically to lower fuse terminal 156 and load side terminal 162 simultaneously.But can be in housing 104 below the

contact

172 and 174 of switch, form arc chute cabin 184, but and arc chute can provide the space with in the contact 172 of breaking off switch with comprised and the dissipation arc energy at 174 o'clock.Be in two position breaking arc discharges in each

contact

172 and 174; Thereby reduce arc stiffness; And; When master cock actuator 110 with when line side terminal 142 is broken off fuses 106, arc discharge is comprised in the bottom part of housing 104 and away from upper surface 118 and user's hand.

Housing 104 additionally can comprise and can use switch actuator 110 is fixed on one of them locking ring 186 of off-position shown in Figure 2 and open position shown in Figure 3 with maintenance aperture 188 cooperations in the switch actuator body 166.Stop pin for example can be inserted through locking ring 186 and keep aperture 188, switch actuator is constrained in the corresponding position that opens or closes.In addition, the fuse keeping arm can be provided in switch actuator 110, except that when switch actuator 110 is shown in an open position, to prevent to remove fuse.

But Fig. 3 show with switch actuator the direction of arrow A move to open or the position of switch so that the disconnection module 102 of the contact of

switch

172 and 174 after

static contact

178 and 180 is broken off.When actuator was moved to open position, actuator body 166 was around axle 134 rotations, and the motion actuator link 168 that therefore in actuator compartment 164, makes progress.When chaining part 168 moved upward, chaining part 168 upwards drew slider bar 176 in the direction of arrow B, but so that the contact of

switch

172 and 174 from static contact 178 with opened in 180 minutes.

Biasing element 200 can provide below slider bar 176 and can upwards promote slider bar 176 in the direction of arrow B to the position of opening fully that makes contact 172,174 and 178,180 from being separated from each other.Thereby when the direction rotary actuator main body 166 in arrow A, kinematic chain fitting 168 is through balance point, and biasing element 200 assisting in opening contacts 172,174 and 178,180.Therefore, biasing element 200 prevents that contact 172,174 and 178,180 from partially opening, and guarantees that the contact is fully separately to cut off the circuit through module 102 safely.

In addition; When the direction in arrow C is withdrawn into off-position shown in Figure 2 with actuator rod 136; Motion actuator link 168 with arrow D be directed downwards location slider bar 176, to engage and to close closed contact 172,174 and 178,180 and is connected the circuit that passes through fuse 106 again.Biasing against biasing element 200 moves downward slider bar 176, and in case in the closed position, slider bar 176, actuator link 168 and switch actuator are in static balancing, make switch actuator 10 will be retained in off-position.

In an exemplary embodiment, and shown in Fig. 2 and 3, biasing element 200 can be the helical spring element in the off-position compression-loaded of switch actuator 110.Yet, should be appreciated that in the embodiment that substitutes, when switch actuator 110 was closed, wind spring can loaded in tension.In addition, can provide other known biasing element to open and/or close power with generation, with auxiliary correct operation of breaking off module 102.When opened the contact, biasing element also can be used for the purpose of damping.

When moving between the opening and closing position in switch actuator, bar 136 is not interfered the working space around the disconnection module 102, and bar 136 can not return off-position from open position unintentionally.In off-position shown in Figure 3, bar 136 is orientated the end of contiguous fuse 106 as.Therefore, fuse 106 is partly sheltered bar 136, avoids bar 136 to be contacted unintentionally and avoids bar 136 to be driven into off-position unintentionally.Biasing element 200 also provides some motions to bar 136 and the impedance of closing of contact mechanism.In addition,

static contact

178 and 180 is always by 104 protections of the housing of module 102, and avoided since with any danger of line side terminal 142 and

static contact

178 and 180 the electric shock that contacts.Therefore, think that disconnection module 102 is safer than many known off devices that fuse is housed.

When module 102 being connected to together when forming the multipole equipment such as equipment 100, a bar 136 can extend through and be connected to a plurality of switch actuator 110 that are used for disparate modules.Thereby, can be through handling the modules 102 that single bar 136 breaks off and be connected again whole connections.That is a plurality of utmost points in the switchgear 100 simultaneously.Alternatively, the switch actuator 110 of each module 102 in the equipment 100 bar 136 that can use each module to separate drives independently.

Fig. 4 is the side elevation view that fusible switch breaks off 102 another exemplary embodiment, and fusible switch breaks off 102, and comprise for example can be from the retractible locking protrusion 210 of switch actuator 110 extensions when bar 136 moves to open position.Locking protrusion 210 can provide the lock opening 212 through wherein and can be inserted through lock opening 212 and cannot move to padlock or other element of off-position to guarantee bar 136.In various embodiment, locking protrusion 210 can be spring loaded and automatically extend, and perhaps can manually extend from switch actuator body 166.When bar 136 is moved to off-position, the position that locking protrusion 210 can be automatically or manually Returning switch actuator 110 can be rotated the withdrawal of getting back to off-position shown in Figure 2.

But Fig. 5 is for breaking off the perspective view of the 3rd exemplary embodiment of module 220 with above-mentioned module 102 similar fusible switches with the DIN rail mounting groove 222 in the lower limb 224 that for example is formed on housing 226.Housing 226 can also comprise and can be used for module 220 is connected to the opening 228 that other breaks off module.The lateral edges 230 of housing 226 can comprise that being used for line side and load is connected to box lug plate or the connection opening 232 of anchor clamps in the housing 226.Can in the recessed upper surface 236 of housing 226, access openings 234 be provided.For example the lead of strip off can extend through connection opening 232 and can screwdriver be inserted through access openings 234, so that circuit and load circuit are connected to module 220.

Similar with module 102, module 220 can comprise fuse 106, fuse cover 108 and switch actuator 110.But with as the contact of the top switch of describing about module 102 realize the switch of module.

Fig. 6 and 7 is that fusible switch breaks off the perspective view of the 4th exemplary embodiment of module 250; Similar with 220 with above-mentioned module 102, fusible switch breaks off bar 136 and the slider bar 176 that module 250 comprises the switch actuator 110 that rotatably on axle 134, is installed to housing, extends from actuator link 168.Module 250 also comprises for example installs clip 144 and line side terminal element 142.

Different with

module

102 and 220, module 250 can comprise the housing 252 that is configured to or is fit to receive rectangular fuse module 254 rather than tube fuse 106.Fuse module 254 is known assembly, comprises the housing 256 of rectangle and the terminal blades 258 of extending from housing 256.Fuse element or fuse assembly can be positioned in the housing 256 and be electrically connected between terminal blades 258.Such fuse module 254 is known and be can be from St.Louis in one embodiment, the CubeFuse module that the Cooper/Bussmann of Missouri buys.

Line side fuse clip 260 can be positioned in the housing 252 and can receive fuse module 254 terminal blades 258 one of them.Load side fuse clip 262 also can be positioned in the housing 252 and can receive another fuse terminal cutter 258.Line side fuse clip 260 can be connected electrically to static contact 180.Load side fuse clip 262 can be connected electrically to load side terminal 162.Line side terminal 142 can comprise static contact 178, but and can through rotary switch actuator 110 with engage as stated and break away from

switch contact

172 and 174 and corresponding

static contact

178 and 180 realize switch.Though line terminal 142 is depicted as the bus clip, should be appreciated that, can use other line terminal in other embodiments, and in another embodiment, the saddle screw terminal shown in replacing, load side terminal 162 can be similarly the terminal of another kind of type.

Fuse module 254 can be inserted into fuse clip 260,262 or take out therefrom, to install or to remove fuse module 254 from housing 252.Yet for switching purposes, 172,174 are connected and open circuit with 262 places with 180 places rather than in fuse clip 260 with 178 in the contact.Therefore, the arc discharge between the contact of disconnection can be contained in arc chute or the cabin 270 at part place, bottom in cabin and away from fuse clip 260 and 262.Break off module 250 through before installing or remove fuse module 254, opening, any danger that elimination causes at the arc discharge or the live metal of fuse and housing interface with switch actuator 110.Therefore, think that breaking off module 250 uses safer than many known cut-off switch that fuse is housed.

A plurality of modules 250 can connect or otherwise be joined together to form multipole equipment.Extremely can actuating through single bar 136 of equipment maybe can use different bars to operate independently.

Fig. 8 is the perspective view of the 5th exemplary embodiment of fusible switch off device 300, and fusible switch off device 300 is the multipole equipment in integrated housing 302 for example.In exemplary embodiment, housing 302 can be configured to hold three fuses 106, and therefore is highly suitable for three phase power application.In the illustrated embodiment, housing 204 can comprise DIN rail groove 304, yet, should be appreciated that, in the embodiment that substitutes, can use other that selection, mechanism and mount scheme are installed.In addition; In one embodiment; According to the I EC technological standards for the contactor that in industrial control system is used, generally uses equally, relay, manual motor protective device and whole starter, housing 204 can have about 45 millimeters width scales D.Yet, produce equally for equipment with different scale and the equipment benefit of the present invention that is used for different application.

Housing further comprises that in each lateral edges 310 can receive lead respectively connects the connection opening 306 and access openings 308 that is connected with load with the circuit that is established to fuse 106 with instrument.Can rotate single switch actuator 110 to connect and to break off at the circuit of off device 300 and the circuit that passes through fuse between the face terminals.

Fig. 9 is the perspective view that is used for the exemplary switch module 320 of equipment 300.But switch module can be accommodated in the housing 302 and in exemplary embodiment, can comprise one group of line terminal 322, one group of face terminals 324, one group of lower fuse terminal 326 relevant with each corresponding fuse 106 and one group have the slider bar 176 of contact of switch that mounted thereto being used to engaged and broke away from the static contact of the end that is installed to line terminal 322 and lower fuse terminal 324.Actuator link (invisible in Fig. 9) can be installed to actuator shaft 134, make when swingle 136, but can motion slider bar 176 so that the contact of switch from static contact disconnection.Biasing element 200 can be provided in below each slider bar 176 and the operation of auxiliary switch actuator 110 as stated.With the previous embodiments of module, multiple line side and load side terminal structures can be used for the various embodiment of switch module.

Keep rod 328 also to may be provided on the axle 134, it extends to fuse 106 and engages fuse with the mode of interlocking, removes fuse 106 except that when switch actuator 110 is shown in an open position, to prevent slave unit 300.At open position, keeping rod 328 can leave the angled and fuse of fuse 106 can freely be removed.In off-position as shown in Figure 9, keeping arm or excellent 328 is locked in the appropriate position fuse.In exemplary embodiment, the far-end of rod or arm 328 can be received in the groove or ratchet in the fuse 106, yet can lock fuse 106 in another way as required.

Figure 10 is the perspective view of the 6th exemplary embodiment of fusible switch off device 370, and fusible switch off device 370 comprises above-mentioned disconnection module 300 and for example is installed to a side of module 300 and mechanically is linked to the under voltage module 372 of the switching mechanism in the module 300.In exemplary embodiment, under voltage module 372 can comprise the solenoid 374 that is calibrated to predetermined voltage range.When voltage is reduced to this scope when following, solenoid causes the switch contacts in the module 300 to be opened.In the embodiment that substitutes, open switch contact when the voltage that similar module 372 can be used for receiving when electromagnetism surpasses predetermined voltage range, and therefore can be used as the overvoltage module.Like this, when under voltage or over-voltage condition generation, can open the switch contact in the module 300 with module 372 and coil 374.

Figure 11 is the perspective view of the 7th exemplary embodiment of fusible switch off device 400, and fusible switch off device 400 is the off device 300 and off device 220 that is bound up basically.Off device 300 is provided for three utmost points of AC power circuit and the additional utmost point that equipment 220 is provided for other purpose.

Therefore, the embodiment of the fusible off device that switches on and off easily with convenient and safe mode under the situation of working space that can be around interference apparatus has not here been described.Off device can be with cost-effective mode make-and-break contact and can using with the standardized equipment in Industry Control Application for example reliably.In addition, for the versatility in this area, off device can provide different installation and be connected selection.

Disclosed the embodiment that fusible switch breaks off module here.Module comprises the disconnection housing that is adapted at wherein receiving at least one fuse; Line side that when fuse is inserted into housing, communicates and load side terminal with at least one fuse; But and be provided at the contact of the switch between the line side terminal of breaking off housing and load side terminal one of them and the fuse.Fuse can be inserted housing removedly; And but the contact of switch comprises at least one static contact and at least one movable contact; At least one movable contact can selectively be located between open position and off-position with respect to static contact along the axis of straight line, to connect or disconnection being electrically connected through fuse.

Alternatively, static contact comprises the contact of pair of stationary, and static contact one of them be provided on the line side terminal.At least one fuse terminal can be provided and be fit to engage the element of the conduction of fuse, and wherein, at least one static contact comprises the contact of pair of stationary, and one of them is provided at static contact on the fuse terminal.Movable rod can be provided with at least one movable contact; And the switch actuator of rotatably installing may be provided in and opening and closing movable contact, location between the position, and biasing element can be assisted movable contact moved to and opened or closed the position.At least two movable contacts can be provided and they are separated each other, but thus when opening the contact of switch two spaced positions from each other breaking arcs discharges.The arc chute cabin can be provided in to be broken off in the housing, to comprise and the dissipation arc energy away from the position in user's the disconnection housing.Can but the contact of switch be locked in open or close the position one of them, and switch actuator can comprise and keep rod preventing removing fuse from breaking off housing, only if but the contact of switch be shown in an open position.Break off housing and can be fit to receiving barrel fuse or rectangular fuse module, and modular housing can be provided and they are connected to each other, but each modular housing comprises the contact of switch, to connect or to break off corresponding fuse.Switch actuator can connect or break off a plurality of fuses simultaneously.Fuse cover can the extend through fuse the part of exposing, fuse cover can lock to prevent removing fuse from breaking off housing.But can provide solenoid and solenoid can be adapted under voltage or one of them contact of opening switch down of over-voltage condition.

The embodiment of the fusible switch off device of one pole has also been described here.This equipment comprises the disconnection housing that is adapted at wherein receiving fuse, and fuse and housing provide dividually and can be inserted housing removedly; When fuse is inserted into housing, be connected to the line side and the load side terminal of fuse, at least one in circuit and the load side terminal comprises the first static switch contact that is provided between corresponding line side terminal and load side terminal and the fuse; Be fit to be inserted into when fuse the terminal of the element of the conduction of joint fuse when breaking off housing, fuse terminal comprises the second static switch contact that is provided at least one fuse terminal; Break off the slider bar in the housing, slider bar provides the first and second movable contacts of the corresponding first and second static switch contacts; The switch actuator of rotatably installing is with the location slider bar and the first and second movable contacts between with respect to the open position of the first and second static switch contacts and off-position, to connect or to break off being electrically connected through fuse.

The embodiment of multipole fusible switch off device has also been described here.This equipment comprises the disconnection housing that is adapted at wherein receiving a plurality of fuses, and fuse and housing provide dividually and can be inserted housing removedly; When fuse is inserted into line side and the load side terminal that is connected to corresponding fuse when breaking off housing, and static switch contact is provided at the corresponding line side terminal that is used for each fuse and load side terminal between one of them; Be fit to be inserted into reception when breaking off housing and to engage the fuse terminal of element of the conduction of each corresponding fuse when fuse, each fuse terminal comprises the second static switch contact; The slide actuator rod of corresponding each corresponding fuse, slider bar provides the first and second movable contacts that are electrically connected of when being moved to off-position, accomplishing through each fuse; The switch actuator of rotatably installing, connecting or to break off through being electrically connected of fuse, switch actuator connects simultaneously or breaks off fuse with the location slider bar.Alternatively, break off housing can be fit to second break off housing be linked together.

Another embodiment of fusible switch off device has been described here.Equipment comprises the device that is used to hold at least one fuse, and fuse can be inserted housing removedly; Be used for fuse is connected to the device of circuit; Be used for device that switch is used to connect to connect or to break off the device that is electrically connected through fuse, the device that is used for switch is positioned in the device that is used to hold; And being used to actuate device that is used for switch and the device that under the situation that does not remove fuse from the device that is used to hold, selectively will be used for switch is positioned at the device that opens and closes the position.Alternatively, equipment can also comprise be used to respond overvoltage event and under voltage incident one of them open be used for switch device to the position that is connected or break off one of them device.

Though described the present invention through different certain embodiments, those skilled in the art should be appreciated that, can in the spirit of claims and scope, put into practice the present invention with modification.

Claims

1. a fusible switch breaks off module, and it comprises:

The disconnection housing that is adapted at wherein directly receiving at least one fuse and does not use fuse holder, this fuse can be inserted housing removedly;

The line side and the load side terminal that when this fuse is inserted into housing, communicate with this at least one fuse;

But be provided at the contact of the switch between the line side terminal of breaking off housing and load side terminal one of them and the fuse; But the contact of being somebody's turn to do switch comprises at least one static contact and at least one movable contact; This at least one movable contact can selectively be located between open position and off-position with respect to static contact along the axis of straight line, to connect or disconnection being electrically connected through fuse; And

The auxiliary biasing element that movable contact is moved to open position.

2. fusible switch according to claim 1 breaks off module, and wherein, this at least one static contact comprises the contact of pair of stationary, and one of them is provided at this static contact on the line side terminal.

3. fusible switch according to claim 1 breaks off module; At least one fuse terminal that also comprises the element of the conduction that is fit to this at least one fuse of joint; Wherein, This at least one static contact comprises the contact of pair of stationary, and one of them is provided at this static contact on this at least one fuse terminal.

4. fusible switch according to claim 1 breaks off module, also is included in the movable rod that breaks off in the housing, and this movable rod provides this at least one movable contact.

5. fusible switch according to claim 1 breaks off module, also comprises the switch actuator of rotatably installing, to open and close movable contact, location between the position.

6. fusible switch according to claim 1 breaks off module; Wherein, But the contact of switch comprises at least two static contacts that separate each other and at least two movable contacts that separate each other; But when opening the contact of switch, discharge thus at two position breaking arcs that separating each other.

7. fusible switch according to claim 1 breaks off module, and wherein, the arc chute cabin is provided to be broken off in the housing, to comprise and the dissipation arc energy away from the position in user's the disconnection housing.

8. fusible switch according to claim 1 breaks off module, wherein, but the contact of switch can be locked in open or close the position one of them.

9. fusible switch according to claim 1 breaks off module, also comprises switch actuator, and switch actuator comprises and keep rod, preventing removing fuse from breaking off housing, only if but the contact of switch be shown in an open position.

10. fusible switch according to claim 1 breaks off module, wherein, breaks off housing and is fit to the receiving barrel fuse.

11. fusible switch according to claim 1 breaks off module, wherein, break off housing and comprise a plurality of modular housing that is connected to each other, but each modular housing comprises the contact of switch, to connect or to break off corresponding fuse.

12. fusible switch according to claim 1 breaks off module, wherein, behind fuse insertion disconnection housing, fuse exposes through the upper surface portion ground that breaks off housing.

13. fusible switch according to claim 12 breaks off module, also comprises the fuse cover of the part of exposing of extend through fuse, fuse cover can be locked to prevent removing fuse from breaking off housing.

14. a fusible switch off device, it comprises:

Be used to hold the device of at least one fuse, this fuse can be inserted this device that is used to hold removedly and do not used fuse holder;

Be used for fuse is connected to the device of circuit;

Be used for device that switch is used to connect to connect or to break off the device that is electrically connected through fuse, the device that is used for switch is positioned in the device that is used to hold; And

Being used to actuate device that is used for switch and the device that under the situation that does not remove fuse from the device that is used to hold, will be used for switch selectively is positioned at the device that opens and closes the position; And

Be used for being used for the device of the device of switch to the open position biasing.

15. fusible switch off device according to claim 14, wherein, but the device of switch comprises a plurality of movable contacts, with more than a position dissipation arc energy.

16. fusible switch off device according to claim 14, wherein, the device that is used to hold be fit to receiving barrel fuse and rectangular fuse module one of them.

17. fusible switch off device according to claim 14, wherein, the device that is used to hold comprises and is used for comprising in the position away from the user and the device of dissipation arc energy.

18. fusible switch off device according to claim 14, wherein, the device that is used to actuate comprises whirligig and carriage.

19. fusible switch off device according to claim 14 also comprises the device that is used for fuse is locked onto the device that is used to hold.

20. fusible switch off device according to claim 14, wherein, the device that is used to setover comprise spring that tensioning loads and compression-loaded spring one of them.

21. the fusible switch off device of an one pole, it comprises:

Be adapted at wherein directly receiving the disconnection housing of fuse, this fuse and housing provide dividually and are inserted housing removedly and do not use fuse holder;

When fuse is inserted into line side and the load side terminal that is connected to fuse when breaking off housing, at least one in line side and the load side terminal comprises the first static switch contact that is provided between corresponding line side terminal and load side terminal and the fuse;

Be fit to be inserted into when fuse the fuse terminal of the element of the conduction of joint fuse when breaking off housing, fuse terminal comprises the second static switch contact;

Break off the slider bar in the housing, slider bar provides the first and second movable contacts of the corresponding first and second static switch contacts;

The switch actuator of rotatably installing, make said slider bar and first and second movable contact with respect to the first and second static switch contacts in open position and off-position location, to connect or the electrical connection of disconnection through fuse;

Wherein, when the switch actuator rotation was arrived open position to locate said slider bar with first and second movable contact, slider bar was separated from first and second movable contact from the first and second static switch contacts.

22. fusible switch off device according to claim 21, wherein, the arc chute cabin is provided in the said disconnection housing, keeps and the dissipation arc energy with the position away from the user in said disconnection housing.

23. fusible switch off device according to claim 21, wherein, said first and second moving contacts can be locked on a kind of position in open position and the off-position.

One of 24. fusible switch off device according to claim 21, wherein, in suitable receiving barrel fuse of said disconnection housing and the rectangular fuse module.

25. fusible switch off device according to claim 21, but comprise that also the contact of auxiliary switch moves to the biasing element of open position or off-position.

26. fusible switch off device according to claim 21, wherein, said disconnection housing be suitable for second break off housing be linked together.

27. fusible switch off device according to claim 21, but the situation that also is included in one of under voltage or excessive voltage condition is suitable for opening the solenoid of the contact of switch.